1222131001020 has 24 divisors (see below), whose sum is σ = 3421966803024. Its totient is φ = 325901600256.

The previous prime is 1222131001001. The next prime is 1222131001031. The reversal of 1222131001020 is 201001312221.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10184424949 + ... + 10184425068.

It is an arithmetic number, because the mean of its divisors is an integer number (142581950126).

Almost surely, 2^{1222131001020} is an apocalyptic number.

1222131001020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1222131001020 is an abundant number, since it is smaller than the sum of its proper divisors (2199835802004).

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

1222131001020 is a wasteful number, since it uses less digits than its factorization.

1222131001020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20368850029 (or 20368850027 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 1222131001020 its reverse (201001312221), we get a palindrome (1423132313241).

The spelling of 1222131001020 in words is "one trillion, two hundred twenty-two billion, one hundred thirty-one million, one thousand, twenty".