201220101100212 has 48 divisors (see below), whose sum is σ = 472507365762432. Its totient is φ = 66646562738560.

The previous prime is 201220101100189. The next prime is 201220101100237. The reversal of 201220101100212 is 212001101022102.

It is a junction number, because it is equal to n+sod(n) for n = 201220101100191 and 201220101100200.

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, 53229864 + ... + 56884607.

It is an arithmetic number, because the mean of its divisors is an integer number (9843903453384).

Almost surely, 2^{201220101100212} is an apocalyptic number.

It is an amenable number.

201220101100212 is an abundant number, since it is smaller than the sum of its proper divisors (271287264662220).

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

201220101100212 is a wasteful number, since it uses less digits than its factorization.

201220101100212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110115448 (or 110115446 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 201220101100212 its reverse (212001101022102), we get a palindrome (413221202122314).

The spelling of 201220101100212 in words is "two hundred one trillion, two hundred twenty billion, one hundred one million, one hundred thousand, two hundred twelve".