102222222012021 has 16 divisors (see below), whose sum is σ = 137553133382720. Its totient is φ = 67519787621760.

The previous prime is 102222222012011. The next prime is 102222222012023. The reversal of 102222222012021 is 120210222222201.

It is not a de Polignac number, because 102222222012021 - 2⁶ = 102222222011957 is a prime.

It is a super-2 number, since 2×102222222012021² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102222222012023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252055 + ... + 14300628.

It is an arithmetic number, because the mean of its divisors is an integer number (8597070836420).

Almost surely, 2^{102222222012021} is an apocalyptic number.

It is an amenable number.

102222222012021 is a deficient number, since it is larger than the sum of its proper divisors (35330911370699).

102222222012021 is a wasteful number, since it uses less digits than its factorization.

102222222012021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14574276.

The product of its (nonzero) digits is 512, while the sum is 21.

Adding to 102222222012021 its reverse (120210222222201), we get a palindrome (222432444234222).

The spelling of 102222222012021 in words is "one hundred two trillion, two hundred twenty-two billion, two hundred twenty-two million, twelve thousand, twenty-one".