2001121022102 has 16 divisors (see below), whose sum is σ = 3159988070400. Its totient is φ = 947802441960.

The previous prime is 2001121022059. The next prime is 2001121022111. The reversal of 2001121022102 is 2012201211002.

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, 2317202 + ... + 3061317.

It is an arithmetic number, because the mean of its divisors is an integer number (197499254400).

Almost surely, 2^{2001121022102} is an apocalyptic number.

2001121022102 is a deficient number, since it is larger than the sum of its proper divisors (1158867048298).

2001121022102 is a wasteful number, since it uses less digits than its factorization.

2001121022102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5388331.

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

Adding to 2001121022102 its reverse (2012201211002), we get a palindrome (4013322233104).

The spelling of 2001121022102 in words is "two trillion, one billion, one hundred twenty-one million, twenty-two thousand, one hundred two".