220021002012 has 24 divisors (see below), whose sum is σ = 586722672256. Its totient is φ = 62863143408.

The previous prime is 220021002001. The next prime is 220021002043. The reversal of 220021002012 is 210200120022.

It is a Harshad number since it is a multiple of its sum of digits (12).

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, 1309648738 + ... + 1309648905.

Almost surely, 2^220021002012 is an apocalyptic number.

It is an amenable number.

220021002012 is an abundant number, since it is smaller than the sum of its proper divisors (366701670244).

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

220021002012 is a wasteful number, since it uses less digits than its factorization.

220021002012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2619297657 (or 2619297655 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

Adding to 220021002012 its reverse (210200120022), we get a palindrome (430221122034).

The spelling of 220021002012 in words is "two hundred twenty billion, twenty-one million, two thousand, twelve".