100121100000102 has 24 divisors (see below), whose sum is σ = 216974922261240. Its totient is φ = 33366642729120.

The previous prime is 100121100000091. The next prime is 100121100000113. The reversal of 100121100000102 is 201000001121001.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (100121100000091) and next prime (100121100000113).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 588018424 + ... + 588188667.

It is an arithmetic number, because the mean of its divisors is an integer number (9040621760885).

Almost surely, 2^{100121100000102} is an apocalyptic number.

100121100000102 is an abundant number, since it is smaller than the sum of its proper divisors (116853822261138).

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

100121100000102 is a wasteful number, since it uses less digits than its factorization.

100121100000102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1176211828 (or 1176211825 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 100121100000102 its reverse (201000001121001), we get a palindrome (301121101121103).

The spelling of 100121100000102 in words is "one hundred trillion, one hundred twenty-one billion, one hundred million, one hundred two", and thus it is an aban number.