1012220402 has 16 divisors (see below), whose sum is σ = 1625335200. Its totient is φ = 471345120.

The previous prime is 1012220399. The next prime is 1012220471. The reversal of 1012220402 is 2040222101.

1012220402 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×1012220402³ (a number of 28 digits) contains 333 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 223499 + ... + 227982.

It is an arithmetic number, because the mean of its divisors is an integer number (101583450).

Almost surely, 2^1012220402 is an apocalyptic number.

1012220402 is a deficient number, since it is larger than the sum of its proper divisors (613114798).

1012220402 is a wasteful number, since it uses less digits than its factorization.

1012220402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 451561.

The product of its (nonzero) digits is 64, while the sum is 14.

The square root of 1012220402 is about 31815.4113913367. The cubic root of 1012220402 is about 1004.0569859403.

Adding to 1012220402 its reverse (2040222101), we get a palindrome (3052442503).

The spelling of 1012220402 in words is "one billion, twelve million, two hundred twenty thousand, four hundred two".