20212210212 has 24 divisors (see below), whose sum is σ = 47181165696. Its totient is φ = 6734640288.

The previous prime is 20212210201. The next prime is 20212210223. The reversal of 20212210212 is 21201221202.

It is an interprime number because it is at equal distance from previous prime (20212210201) and next prime (20212210223).

It is a junction number, because it is equal to n+sod(n) for n = 20212210191 and 20212210200.

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, 314803 + ... + 373530.

It is an arithmetic number, because the mean of its divisors is an integer number (1965881904).

Almost surely, 2^20212210212 is an apocalyptic number.

It is an amenable number.

20212210212 is an abundant number, since it is smaller than the sum of its proper divisors (26968955484).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20212210212 is a wasteful number, since it uses less digits than its factorization.

20212210212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690787 (or 690785 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20212210212 its reverse (21201221202), we get a palindrome (41413431414).

The spelling of 20212210212 in words is "twenty billion, two hundred twelve million, two hundred ten thousand, two hundred twelve".