10121111220102 has 16 divisors (see below), whose sum is σ = 20735935183152. Its totient is φ = 3291418282880.

The previous prime is 10121111220089. The next prime is 10121111220257. The reversal of 10121111220102 is 20102211112101.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20571364023 + ... + 20571364514.

It is an arithmetic number, because the mean of its divisors is an integer number (1295995948947).

Almost surely, 2^{10121111220102} is an apocalyptic number.

10121111220102 is an abundant number, since it is smaller than the sum of its proper divisors (10614823963050).

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

10121111220102 is a wasteful number, since it uses less digits than its factorization.

10121111220102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41142728583.

The product of its (nonzero) digits is 16, while the sum is 15.

Adding to 10121111220102 its reverse (20102211112101), we get a palindrome (30223322332203).

The spelling of 10121111220102 in words is "ten trillion, one hundred twenty-one billion, one hundred eleven million, two hundred twenty thousand, one hundred two".