1021200101222 has 32 divisors (see below), whose sum is σ = 1804065661440. Its totient is φ = 424425798720.

The previous prime is 1021200101203. The next prime is 1021200101227. The reversal of 1021200101222 is 2221010021201.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 1021200101197 and 1021200101206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1021200101227) 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, 5230772 + ... + 5422487.

It is an arithmetic number, because the mean of its divisors is an integer number (56377051920).

Almost surely, 2^{1021200101222} is an apocalyptic number.

1021200101222 is a deficient number, since it is larger than the sum of its proper divisors (782865560218).

1021200101222 is a wasteful number, since it uses less digits than its factorization.

1021200101222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10653476.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 1021200101222 its reverse (2221010021201), we get a palindrome (3242210122423).

The spelling of 1021200101222 in words is "one trillion, twenty-one billion, two hundred million, one hundred one thousand, two hundred twenty-two".