1210222020 has 96 divisors (see below), whose sum is σ = 3997679616. Its totient is φ = 267696000.

The previous prime is 1210222007. The next prime is 1210222037. The reversal of 1210222020 is 202220121.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1210221987 and 1210222005.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 33456 + ... + 59495.

It is an arithmetic number, because the mean of its divisors is an integer number (41642496).

Almost surely, 2^1210222020 is an apocalyptic number.

1210222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1210222020 is an abundant number, since it is smaller than the sum of its proper divisors (2787457596).

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

1210222020 is a wasteful number, since it uses less digits than its factorization.

1210222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93001 (or 92999 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 12.

The square root of 1210222020 is about 34788.2454285927. The cubic root of 1210222020 is about 1065.6674077143.

Adding to 1210222020 its reverse (202220121), we get a palindrome (1412442141).

The spelling of 1210222020 in words is "one billion, two hundred ten million, two hundred twenty-two thousand, twenty".