20212120988 has 6 divisors (see below), whose sum is σ = 35371211736. Its totient is φ = 10106060492.

The previous prime is 20212120927. The next prime is 20212120997. The reversal of 20212120988 is 88902121202.

It is a super-2 number, since 2×20212120988² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2526515120 + ... + 2526515127.

It is an arithmetic number, because the mean of its divisors is an integer number (5895201956).

Almost surely, 2^20212120988 is an apocalyptic number.

It is an amenable number.

20212120988 is a deficient number, since it is larger than the sum of its proper divisors (15159090748).

20212120988 is a wasteful number, since it uses less digits than its factorization.

20212120988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5053030251 (or 5053030249 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 35.

The spelling of 20212120988 in words is "twenty billion, two hundred twelve million, one hundred twenty thousand, nine hundred eighty-eight".