1213002222020 has 24 divisors (see below), whose sum is σ = 2549036410368. Its totient is φ = 484871032800.

The previous prime is 1213002222001. The next prime is 1213002222023. The reversal of 1213002222020 is 202222003121.

It is a self number, because there is not a number n which added to its sum of digits gives 1213002222020.

It is not an unprimeable number, because it can be changed into a prime (1213002222023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20585846 + ... + 20644685.

It is an arithmetic number, because the mean of its divisors is an integer number (106209850432).

Almost surely, 2^{1213002222020} is an apocalyptic number.

1213002222020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1213002222020 is an abundant number, since it is smaller than the sum of its proper divisors (1336034188348).

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

1213002222020 is a wasteful number, since it uses less digits than its factorization.

1213002222020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41232011 (or 41232009 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 17.

Adding to 1213002222020 its reverse (202222003121), we get a palindrome (1415224225141).

The spelling of 1213002222020 in words is "one trillion, two hundred thirteen billion, two million, two hundred twenty-two thousand, twenty".