102022111220 has 48 divisors (see below), whose sum is σ = 227082093840. Its totient is φ = 38368886784.

The previous prime is 102022111211. The next prime is 102022111259. The reversal of 102022111220 is 22111220201.

It can be written as a sum of positive squares in 8 ways, for example, as 4452092176 + 97570019044 = 66724^2 + 312362^2 .

It is a super-2 number, since 2×102022111220² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102022111195 and 102022111204.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178616 + ... + 485744.

It is an arithmetic number, because the mean of its divisors is an integer number (4730876955).

Almost surely, 2^102022111220 is an apocalyptic number.

102022111220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102022111220 is an abundant number, since it is smaller than the sum of its proper divisors (125059982620).

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

102022111220 is a wasteful number, since it uses less digits than its factorization.

102022111220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 308132 (or 308130 counting only the distinct ones).

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

Adding to 102022111220 its reverse (22111220201), we get a palindrome (124133331421).

The spelling of 102022111220 in words is "one hundred two billion, twenty-two million, one hundred eleven thousand, two hundred twenty".