220211212111212 has 96 divisors (see below), whose sum is σ = 587379639813120. Its totient is φ = 62901447840000.

The previous prime is 220211212111211. The next prime is 220211212111279. The reversal of 220211212111212 is 212111212112022.

220211212111212 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×220211212111212² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (220211212111211) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7888054678 + ... + 7888082594.

It is an arithmetic number, because the mean of its divisors is an integer number (6118537914720).

Almost surely, 2^{220211212111212} is an apocalyptic number.

It is an amenable number.

220211212111212 is an abundant number, since it is smaller than the sum of its proper divisors (367168427701908).

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

220211212111212 is a wasteful number, since it uses less digits than its factorization.

220211212111212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48511 (or 48509 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 21.

Adding to 220211212111212 its reverse (212111212112022), we get a palindrome (432322424223234).

The spelling of 220211212111212 in words is "two hundred twenty trillion, two hundred eleven billion, two hundred twelve million, one hundred eleven thousand, two hundred twelve".