1021202100222 has 64 divisors (see below), whose sum is σ = 2137385263104. Its totient is φ = 324657465440.

The previous prime is 1021202100211. The next prime is 1021202100227. The reversal of 1021202100222 is 2220012021201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021202100227) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 97372663 + ... + 97383149.

It is an arithmetic number, because the mean of its divisors is an integer number (33396644736).

Almost surely, 2^{1021202100222} is an apocalyptic number.

1021202100222 is an abundant number, since it is smaller than the sum of its proper divisors (1116183162882).

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

1021202100222 is a wasteful number, since it uses less digits than its factorization.

1021202100222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12493.

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

Adding to 1021202100222 its reverse (2220012021201), we get a palindrome (3241214121423).

The spelling of 1021202100222 in words is "one trillion, twenty-one billion, two hundred two million, one hundred thousand, two hundred twenty-two".