1022211220121 has 8 divisors (see below), whose sum is σ = 1258106117184. Its totient is φ = 808782503760.

The previous prime is 1022211220111. The next prime is 1022211220193. The reversal of 1022211220121 is 1210221122201.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1022211220121 - 2³⁴ = 1005031350937 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1022211220121.

It is not an unprimeable number, because it can be changed into a prime (1022211220111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5616545075 + ... + 5616545256.

It is an arithmetic number, because the mean of its divisors is an integer number (157263264648).

Almost surely, 2^{1022211220121} is an apocalyptic number.

It is an amenable number.

1022211220121 is a deficient number, since it is larger than the sum of its proper divisors (235894897063).

1022211220121 is a wasteful number, since it uses less digits than its factorization.

1022211220121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11233090351.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1022211220121 its reverse (1210221122201), we get a palindrome (2232432342322).

The spelling of 1022211220121 in words is "one trillion, twenty-two billion, two hundred eleven million, two hundred twenty thousand, one hundred twenty-one".