90101102 has 48 divisors (see below), whose sum is σ = 170644320. Its totient is φ = 35364672.

The previous prime is 90101101. The next prime is 90101107. The reversal of 90101102 is 20110109.

It is a super-2 number, since 2×90101102² = 16236417163228808, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (90101101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 250799 + ... + 251157.

It is an arithmetic number, because the mean of its divisors is an integer number (3555090).

Almost surely, 2^90101102 is an apocalyptic number.

90101102 is a deficient number, since it is larger than the sum of its proper divisors (80543218).

90101102 is a wasteful number, since it uses less digits than its factorization.

90101102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585 (or 578 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 14.

The square root of 90101102 is about 9492.1600281495. The cubic root of 90101102 is about 448.3082188899.

The spelling of 90101102 in words is "ninety million, one hundred one thousand, one hundred two".