221212020102122 has 64 divisors (see below), whose sum is σ = 390197544468480. Its totient is φ = 92081999318400.

The previous prime is 221212020102097. The next prime is 221212020102131. The reversal of 221212020102122 is 221201020212122.

It is a junction number, because it is equal to n+sod(n) for n = 221212020102094 and 221212020102103.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 205884329 + ... + 206955987.

It is an arithmetic number, because the mean of its divisors is an integer number (6096836632320).

Almost surely, 2^{221212020102122} is an apocalyptic number.

221212020102122 is a deficient number, since it is larger than the sum of its proper divisors (168985524366358).

221212020102122 is a wasteful number, since it uses less digits than its factorization.

221212020102122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1073307.

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

Adding to 221212020102122 its reverse (221201020212122), we get a palindrome (442413040314244).

The spelling of 221212020102122 in words is "two hundred twenty-one trillion, two hundred twelve billion, twenty million, one hundred two thousand, one hundred twenty-two".