20101002212212 has 24 divisors (see below), whose sum is σ = 37246188522816. Its totient is φ = 9459240851328.

The previous prime is 20101002212173. The next prime is 20101002212219. The reversal of 20101002212212 is 21221220010102.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101002212219) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12650263 + ... + 14150305.

It is an arithmetic number, because the mean of its divisors is an integer number (1551924521784).

Almost surely, 2^{20101002212212} is an apocalyptic number.

It is an amenable number.

20101002212212 is a deficient number, since it is larger than the sum of its proper divisors (17145186310604).

20101002212212 is a wasteful number, since it uses less digits than its factorization.

20101002212212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697127 (or 1697125 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 20101002212212 its reverse (21221220010102), we get a palindrome (41322222222314).

The spelling of 20101002212212 in words is "twenty trillion, one hundred one billion, two million, two hundred twelve thousand, two hundred twelve".