220102121211 has 32 divisors (see below), whose sum is σ = 353193984000. Its totient is φ = 119103086880.

The previous prime is 220102121209. The next prime is 220102121219. The reversal of 220102121211 is 112121201022.

It is not a de Polignac number, because 220102121211 - 2¹ = 220102121209 is a prime.

It is a super-2 number, since 2×220102121211² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (220102121219) 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, 847590 + ... + 1076388.

It is an arithmetic number, because the mean of its divisors is an integer number (11037312000).

Almost surely, 2^220102121211 is an apocalyptic number.

220102121211 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

220102121211 is a deficient number, since it is larger than the sum of its proper divisors (133091862789).

220102121211 is a wasteful number, since it uses less digits than its factorization.

220102121211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231239.

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

Adding to 220102121211 its reverse (112121201022), we get a palindrome (332223322233).

The spelling of 220102121211 in words is "two hundred twenty billion, one hundred two million, one hundred twenty-one thousand, two hundred eleven".