220101210111212 has 12 divisors (see below), whose sum is σ = 394134725083176. Its totient is φ = 107491288658880.

The previous prime is 220101210111151. The next prime is 220101210111217. The reversal of 220101210111212 is 212111012101022.

It is not an unprimeable number, because it can be changed into a prime (220101210111217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 639829098989 + ... + 639829099332.

It is an arithmetic number, because the mean of its divisors is an integer number (32844560423598).

Almost surely, 2^{220101210111212} is an apocalyptic number.

It is an amenable number.

220101210111212 is a deficient number, since it is larger than the sum of its proper divisors (174033514971964).

220101210111212 is a wasteful number, since it uses less digits than its factorization.

220101210111212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1279658198368 (or 1279658198366 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 220101210111212 its reverse (212111012101022), we get a palindrome (432212222212234).

The spelling of 220101210111212 in words is "two hundred twenty trillion, one hundred one billion, two hundred ten million, one hundred eleven thousand, two hundred twelve".