2001232122102 has 32 divisors (see below), whose sum is σ = 4449168998400. Its totient is φ = 666779398344.

The previous prime is 2001232122073. The next prime is 2001232122139. The reversal of 2001232122102 is 2012212321002.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8155078 + ... + 8396889.

It is an arithmetic number, because the mean of its divisors is an integer number (139036531200).

Almost surely, 2^{2001232122102} is an apocalyptic number.

2001232122102 is an abundant number, since it is smaller than the sum of its proper divisors (2447936876298).

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

2001232122102 is a wasteful number, since it uses less digits than its factorization.

2001232122102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16554217 (or 16554211 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 2001232122102 its reverse (2012212321002), we get a palindrome (4013444443104).

The spelling of 2001232122102 in words is "two trillion, one billion, two hundred thirty-two million, one hundred twenty-two thousand, one hundred two".