1022212202221 has 16 divisors (see below), whose sum is σ = 1169103317760. Its totient is φ = 875536542720.

The previous prime is 1022212202213. The next prime is 1022212202287. The reversal of 1022212202221 is 1222022122201.

1022212202221 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 1022212202221 - 2³ = 1022212202213 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1022212202521) 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, 69734925 + ... + 69749581.

It is an arithmetic number, because the mean of its divisors is an integer number (73068957360).

Almost surely, 2^{1022212202221} is an apocalyptic number.

It is an amenable number.

1022212202221 is a deficient number, since it is larger than the sum of its proper divisors (146891115539).

1022212202221 is a wasteful number, since it uses less digits than its factorization.

1022212202221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21324.

The product of its (nonzero) digits is 256, while the sum is 19.

Adding to 1022212202221 its reverse (1222022122201), we get a palindrome (2244234324422).

The spelling of 1022212202221 in words is "one trillion, twenty-two billion, two hundred twelve million, two hundred two thousand, two hundred twenty-one".