211221211102022 has 64 divisors (see below), whose sum is σ = 349861111170048. Its totient is φ = 94840120080000.

The previous prime is 211221211102009. The next prime is 211221211102039. The reversal of 211221211102022 is 220201112122112.

It is a super-2 number, since 2×211221211102022² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211221211101985 and 211221211102003.

It is a congruent number.

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, 4751540348 + ... + 4751584800.

It is an arithmetic number, because the mean of its divisors is an integer number (5466579862032).

Almost surely, 2^{211221211102022} is an apocalyptic number.

211221211102022 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

211221211102022 is a deficient number, since it is larger than the sum of its proper divisors (138639900068026).

211221211102022 is a wasteful number, since it uses less digits than its factorization.

211221211102022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49445.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 211221211102022 its reverse (220201112122112), we get a palindrome (431422323224134).

The spelling of 211221211102022 in words is "two hundred eleven trillion, two hundred twenty-one billion, two hundred eleven million, one hundred two thousand, twenty-two".