2211022020120 has 64 divisors (see below), whose sum is σ = 6633163837440. Its totient is φ = 589597180800.

The previous prime is 2211022020091. The next prime is 2211022020139. The reversal of 2211022020120 is 210202201122.

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 2211022020120.

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, 15735375 + ... + 15875265.

It is an arithmetic number, because the mean of its divisors is an integer number (103643184960).

Almost surely, 2^{2211022020120} is an apocalyptic number.

2211022020120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2211022020120 is an abundant number, since it is smaller than the sum of its proper divisors (4422141817320).

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

2211022020120 is a wasteful number, since it uses less digits than its factorization.

2211022020120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271616 (or 271612 counting only the distinct ones).

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

Adding to 2211022020120 its reverse (210202201122), we get a palindrome (2421224221242).

The spelling of 2211022020120 in words is "two trillion, two hundred eleven billion, twenty-two million, twenty thousand, one hundred twenty".