1000221010212 has 48 divisors (see below), whose sum is σ = 2398801448960. Its totient is φ = 324142186752.

The previous prime is 1000221010211. The next prime is 1000221010237. The reversal of 1000221010212 is 2120101220001.

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

It is not an unprimeable number, because it can be changed into a prime (1000221010211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 312793 + ... + 1448544.

Almost surely, 2^{1000221010212} is an apocalyptic number.

1000221010212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1000221010212 is an abundant number, since it is smaller than the sum of its proper divisors (1398580438748).

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

1000221010212 is a wasteful number, since it uses less digits than its factorization.

1000221010212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1762660 (or 1762658 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 1000221010212 its reverse (2120101220001), we get a palindrome (3120322230213).

The spelling of 1000221010212 in words is "one trillion, two hundred twenty-one million, ten thousand, two hundred twelve".