1020121002102 has 16 divisors (see below), whose sum is σ = 2147623162560. Its totient is φ = 322143474312.

The previous prime is 1020121002067. The next prime is 1020121002139. The reversal of 1020121002102 is 2012001210201.

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, 4474214808 + ... + 4474215035.

It is an arithmetic number, because the mean of its divisors is an integer number (134226447660).

Almost surely, 2^{1020121002102} is an apocalyptic number.

1020121002102 is an abundant number, since it is smaller than the sum of its proper divisors (1127502160458).

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

1020121002102 is a wasteful number, since it uses less digits than its factorization.

1020121002102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8948429867.

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

Adding to 1020121002102 its reverse (2012001210201), we get a palindrome (3032122212303).

The spelling of 1020121002102 in words is "one trillion, twenty billion, one hundred twenty-one million, two thousand, one hundred two".