10222012211220 has 60 divisors (see below), whose sum is σ = 32066830904724. Its totient is φ = 2725869922560.

The previous prime is 10222012211209. The next prime is 10222012211227. The reversal of 10222012211220 is 2211221022201.

It is a happy number.

10222012211220 is a `hidden beast` number, since 1 + 0 + 2 + 220 + 1 + 221 + 1 + 220 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 1165078454544 + 9056933756676 = 1079388^2 + 3009474^2 .

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10222012211193 and 10222012211202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10222012211227) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3154940421 + ... + 3154943660.

Almost surely, 2^{10222012211220} is an apocalyptic number.

10222012211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10222012211220 is an abundant number, since it is smaller than the sum of its proper divisors (21844818693504).

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

10222012211220 is a wasteful number, since it uses less digits than its factorization.

10222012211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6309884102 (or 6309884091 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 10222012211220 its reverse (2211221022201), we get a palindrome (12433233233421).

The spelling of 10222012211220 in words is "ten trillion, two hundred twenty-two billion, twelve million, two hundred eleven thousand, two hundred twenty".