1011021222100 has 36 divisors (see below), whose sum is σ = 2197758410848. Its totient is φ = 403700220000.

The previous prime is 1011021222067. The next prime is 1011021222137. The reversal of 1011021222100 is 12221201101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 8795976 + ... + 8910175.

Almost surely, 2^{1011021222100} is an apocalyptic number.

1011021222100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1011021222100 is an abundant number, since it is smaller than the sum of its proper divisors (1186737188748).

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

1011021222100 is a wasteful number, since it uses less digits than its factorization.

1011021222100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17706736 (or 17706729 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 1011021222100 its reverse (12221201101), we get a palindrome (1023242423201).

The spelling of 1011021222100 in words is "one trillion, eleven billion, twenty-one million, two hundred twenty-two thousand, one hundred".