1021122202201 has 16 divisors (see below), whose sum is σ = 1074036889728. Its totient is φ = 968922697600.

The previous prime is 1021122202159. The next prime is 1021122202211. The reversal of 1021122202201 is 1022022211201.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1021122202201 - 2¹⁹ = 1021121677913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1021122202211) 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, 8560965 + ... + 8679421.

It is an arithmetic number, because the mean of its divisors is an integer number (67127305608).

Almost surely, 2^{1021122202201} is an apocalyptic number.

It is an amenable number.

1021122202201 is a deficient number, since it is larger than the sum of its proper divisors (52914687527).

1021122202201 is a wasteful number, since it uses less digits than its factorization.

1021122202201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121472.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 1021122202201 its reverse (1022022211201), we get a palindrome (2043144413402).

The spelling of 1021122202201 in words is "one trillion, twenty-one billion, one hundred twenty-two million, two hundred two thousand, two hundred one".