100020121010402 has 8 divisors (see below), whose sum is σ = 150030916947036. Its totient is φ = 50009815361392.

The previous prime is 100020121010401. The next prime is 100020121010437. The reversal of 100020121010402 is 204010121020001.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 94147452167521 + 5872668842881 = 9702961^2 + 2423359^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (100020121010401) 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, 122061473 + ... + 122878164.

Almost surely, 2^{100020121010402} is an apocalyptic number.

100020121010402 is a deficient number, since it is larger than the sum of its proper divisors (50010795936634).

100020121010402 is a wasteful number, since it uses less digits than its factorization.

100020121010402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 245143812.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 100020121010402 its reverse (204010121020001), we get a palindrome (304030242030403).

The spelling of 100020121010402 in words is "one hundred trillion, twenty billion, one hundred twenty-one million, ten thousand, four hundred two".