102220201221011 has 4 divisors (see below), whose sum is σ = 102220256074872. Its totient is φ = 102220146367152.

The previous prime is 102220201220989. The next prime is 102220201221023. The reversal of 102220201221011 is 110122102022201.

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 102220201221011 - 2³⁸ = 101945323314067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102220201221041) 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, 24529661 + ... + 28392686.

It is an arithmetic number, because the mean of its divisors is an integer number (25555064018718).

Almost surely, 2^{102220201221011} is an apocalyptic number.

102220201221011 is a deficient number, since it is larger than the sum of its proper divisors (54853861).

102220201221011 is an equidigital number, since it uses as much as digits as its factorization.

102220201221011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54853860.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 102220201221011 its reverse (110122102022201), we get a palindrome (212342303243212).

The spelling of 102220201221011 in words is "one hundred two trillion, two hundred twenty billion, two hundred one million, two hundred twenty-one thousand, eleven".