102220220020111 has 4 divisors (see below), whose sum is σ = 102221265624424. Its totient is φ = 102219174415800.

The previous prime is 102220220020109. The next prime is 102220220020157. The reversal of 102220220020111 is 111020022022201.

It is a happy number.

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 102220220020111 - 2¹ = 102220220020109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102229220020111) 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, 522655500 + ... + 522851041.

It is an arithmetic number, because the mean of its divisors is an integer number (25555316406106).

Almost surely, 2^{102220220020111} is an apocalyptic number.

102220220020111 is a deficient number, since it is larger than the sum of its proper divisors (1045604313).

102220220020111 is an equidigital number, since it uses as much as digits as its factorization.

102220220020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1045604312.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 102220220020111 its reverse (111020022022201), we get a palindrome (213240242042312).

The spelling of 102220220020111 in words is "one hundred two trillion, two hundred twenty billion, two hundred twenty million, twenty thousand, one hundred eleven".