102012122202221 has 12 divisors (see below), whose sum is σ = 128147459296416. Its totient is φ = 79489965351720.

The previous prime is 102012122202167. The next prime is 102012122202227. The reversal of 102012122202221 is 122202221210201.

It is not a de Polignac number, because 102012122202221 - 2⁴² = 97614075691117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102012122202193 and 102012122202202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102012122202227) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60219669875 + ... + 60219671568.

It is an arithmetic number, because the mean of its divisors is an integer number (10678954941368).

Almost surely, 2^{102012122202221} is an apocalyptic number.

102012122202221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102012122202221 is a deficient number, since it is larger than the sum of its proper divisors (26135337094195).

102012122202221 is a wasteful number, since it uses less digits than its factorization.

102012122202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120439341472 (or 120439341461 counting only the distinct ones).

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 102012122202221 its reverse (122202221210201), we get a palindrome (224214343412422).

The spelling of 102012122202221 in words is "one hundred two trillion, twelve billion, one hundred twenty-two million, two hundred two thousand, two hundred twenty-one".