1020202211220 has 48 divisors (see below), whose sum is σ = 2856619405248. Its totient is φ = 272048855040.

The previous prime is 1020202211213. The next prime is 1020202211251. The reversal of 1020202211220 is 221122020201.

1020202211220 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×1020202211220⁴ (a number of 49 digits) contains 4444 as substring.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1020202211220.

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, 3985332 + ... + 4233588.

It is an arithmetic number, because the mean of its divisors is an integer number (59512904276).

Almost surely, 2^{1020202211220} is an apocalyptic number.

1020202211220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020202211220 is an abundant number, since it is smaller than the sum of its proper divisors (1836417194028).

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

1020202211220 is a wasteful number, since it uses less digits than its factorization.

1020202211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 316760 (or 316758 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 1020202211220 its reverse (221122020201), we get a palindrome (1241324231421).

The spelling of 1020202211220 in words is "one trillion, twenty billion, two hundred two million, two hundred eleven thousand, two hundred twenty".