212220022 has 16 divisors (see below), whose sum is σ = 364177152. Its totient is φ = 90858600.

The previous prime is 212220013. The next prime is 212220031. The reversal of 212220022 is 220022212.

212220022 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (212220013) and next prime (212220031).

It is a junction number, because it is equal to n+sod(n) for n = 212219984 and 212220011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7503 + ... + 21925.

It is an arithmetic number, because the mean of its divisors is an integer number (22761072).

Almost surely, 2^212220022 is an apocalyptic number.

212220022 is a deficient number, since it is larger than the sum of its proper divisors (151957130).

212220022 is a wasteful number, since it uses less digits than its factorization.

212220022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15483.

The product of its (nonzero) digits is 64, while the sum is 13.

The square root of 212220022 is about 14567.7734057062. The cubic root of 212220022 is about 596.4794031036.

Adding to 212220022 its reverse (220022212), we get a palindrome (432242234).

It can be divided in two parts, 212 and 220022, that multiplied together give a palindrome (46644664).

The spelling of 212220022 in words is "two hundred twelve million, two hundred twenty thousand, twenty-two".