2001101122012 has 24 divisors (see below), whose sum is σ = 3514610511216. Its totient is φ = 996929632128.

The previous prime is 2001101121931. The next prime is 2001101122051. The reversal of 2001101122012 is 2102211011002.

It is a junction number, because it is equal to n+sod(n) for n = 2001101121983 and 2001101122001.

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, 2363503 + ... + 3096505.

It is an arithmetic number, because the mean of its divisors is an integer number (146442104634).

Almost surely, 2^{2001101122012} is an apocalyptic number.

It is an amenable number.

2001101122012 is a deficient number, since it is larger than the sum of its proper divisors (1513509389204).

2001101122012 is a wasteful number, since it uses less digits than its factorization.

2001101122012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735477 (or 735475 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2001101122012 its reverse (2102211011002), we get a palindrome (4103312133014).

The spelling of 2001101122012 in words is "two trillion, one billion, one hundred one million, one hundred twenty-two thousand, twelve".