102121132 has 24 divisors (see below), whose sum is σ = 181991936. Its totient is φ = 50128848.

The previous prime is 102121109. The next prime is 102121133. The reversal of 102121132 is 231121201.

It is a super-2 number, since 2×102121132² = 20857451201922848, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (102121133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 123673 + ... + 124495.

Almost surely, 2^102121132 is an apocalyptic number.

It is an amenable number.

102121132 is a deficient number, since it is larger than the sum of its proper divisors (79870804).

102121132 is a wasteful number, since it uses less digits than its factorization.

102121132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1357 (or 1355 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 102121132 is about 10105.5000865865. The cubic root of 102121132 is about 467.4177567012.

Adding to 102121132 its reverse (231121201), we get a palindrome (333242333).

The spelling of 102121132 in words is "one hundred two million, one hundred twenty-one thousand, one hundred thirty-two".