2001211201022 has 16 divisors (see below), whose sum is σ = 3275324629632. Its totient is φ = 909470512920.

The previous prime is 2001211201009. The next prime is 2001211201079. The reversal of 2001211201022 is 2201021121002.

It is a junction number, because it is equal to n+sod(n) for n = 2001211200988 and 2001211201006.

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, 8427338 + ... + 8661549.

It is an arithmetic number, because the mean of its divisors is an integer number (204707789352).

Almost surely, 2^{2001211201022} is an apocalyptic number.

2001211201022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2001211201022 is a deficient number, since it is larger than the sum of its proper divisors (1274113428610).

2001211201022 is a wasteful number, since it uses less digits than its factorization.

2001211201022 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17094223.

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

Adding to 2001211201022 its reverse (2201021121002), we get a palindrome (4202232322024).

The spelling of 2001211201022 in words is "two trillion, one billion, two hundred eleven million, two hundred one thousand, twenty-two".