220212121101 has 16 divisors (see below), whose sum is σ = 338639875200. Its totient is φ = 124681042368.

The previous prime is 220212121097. The next prime is 220212121109. The reversal of 220212121101 is 101121212022.

It is not a de Polignac number, because 220212121101 - 2² = 220212121097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (220212121109) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 48099966 + ... + 48104543.

It is an arithmetic number, because the mean of its divisors is an integer number (21164992200).

Almost surely, 2^220212121101 is an apocalyptic number.

220212121101 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

220212121101 is a deficient number, since it is larger than the sum of its proper divisors (118427754099).

220212121101 is a wasteful number, since it uses less digits than its factorization.

220212121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96204628.

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

Adding to 220212121101 its reverse (101121212022), we get a palindrome (321333333123).

It can be divided in two parts, 2202121 and 21101, that added together give a palindrome (2223222).

The spelling of 220212121101 in words is "two hundred twenty billion, two hundred twelve million, one hundred twenty-one thousand, one hundred one".