102220120211 has 4 divisors (see below), whose sum is σ = 111512858424. Its totient is φ = 92927382000.

The previous prime is 102220120201. The next prime is 102220120309. The reversal of 102220120211 is 112021022201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102220120211 - 2²² = 102215925907 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102220120201) 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, 4646369090 + ... + 4646369111.

It is an arithmetic number, because the mean of its divisors is an integer number (27878214606).

Almost surely, 2^102220120211 is an apocalyptic number.

102220120211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

102220120211 is a deficient number, since it is larger than the sum of its proper divisors (9292738213).

102220120211 is an equidigital number, since it uses as much as digits as its factorization.

102220120211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9292738212.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 102220120211 its reverse (112021022201), we get a palindrome (214241142412).

The spelling of 102220120211 in words is "one hundred two billion, two hundred twenty million, one hundred twenty thousand, two hundred eleven".