10121012020002 has 256 divisors, whose sum is σ = 23666030599680. Its totient is φ = 2859577344000.

The previous prime is 10121012019971. The next prime is 10121012020013. The reversal of 10121012020002 is 20002021012101.

It is a self number, because there is not a number n which added to its sum of digits gives 10121012020002.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1496966302 + ... + 1496973062.

It is an arithmetic number, because the mean of its divisors is an integer number (92445432030).

Almost surely, 2^{10121012020002} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10121012020002, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11833015299840).

10121012020002 is an abundant number, since it is smaller than the sum of its proper divisors (13545018579678).

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

10121012020002 is a wasteful number, since it uses less digits than its factorization.

10121012020002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7109.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 10121012020002 its reverse (20002021012101), we get a palindrome (30123033032103).

The spelling of 10121012020002 in words is "ten trillion, one hundred twenty-one billion, twelve million, twenty thousand, two".