1202121132 has 12 divisors (see below), whose sum is σ = 2804949336. Its totient is φ = 400707040.

The previous prime is 1202121113. The next prime is 1202121191. The reversal of 1202121132 is 2311212021.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-2 number, since 2×1202121132² = 2890190432001922848, which contains 22 as substring.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 50088369 + ... + 50088392.

It is an arithmetic number, because the mean of its divisors is an integer number (233745778).

Almost surely, 2^1202121132 is an apocalyptic number.

1202121132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1202121132 is an abundant number, since it is smaller than the sum of its proper divisors (1602828204).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1202121132 is a wasteful number, since it uses less digits than its factorization.

1202121132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 100176768 (or 100176766 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1202121132 is about 34671.6185373570. The cubic root of 1202121132 is about 1063.2843226025.

Adding to 1202121132 its reverse (2311212021), we get a palindrome (3513333153).

It can be divided in two parts, 12021 and 21132, that added together give a triangular number (33153 = T₂₅₇).

The spelling of 1202121132 in words is "one billion, two hundred two million, one hundred twenty-one thousand, one hundred thirty-two".