121020002132 has 12 divisors (see below), whose sum is σ = 211790806836. Its totient is φ = 60508343040.

The previous prime is 121020002021. The next prime is 121020002137. The reversal of 121020002132 is 231200020121.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 117096733636 + 3923268496 = 342194^2 + 62636^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121020002137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 242333 + ... + 548420.

It is an arithmetic number, because the mean of its divisors is an integer number (17649233903).

Almost surely, 2^121020002132 is an apocalyptic number.

It is an amenable number.

121020002132 is a deficient number, since it is larger than the sum of its proper divisors (90770804704).

121020002132 is a wasteful number, since it uses less digits than its factorization.

121020002132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 829018 (or 829016 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 121020002132 its reverse (231200020121), we get a palindrome (352220022253).

The spelling of 121020002132 in words is "one hundred twenty-one billion, twenty million, two thousand, one hundred thirty-two".