2111011010220 has 96 divisors (see below), whose sum is σ = 6919997124096. Its totient is φ = 470748096000.

The previous prime is 2111011010197. The next prime is 2111011010243. The reversal of 2111011010220 is 220101101112.

It is an interprime number because it is at equal distance from previous prime (2111011010197) and next prime (2111011010243).

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 = 2111011010196 and 2111011010205.

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, 61278106 + ... + 61312545.

It is an arithmetic number, because the mean of its divisors is an integer number (72083303376).

Almost surely, 2^{2111011010220} is an apocalyptic number.

2111011010220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111011010220 is an abundant number, since it is smaller than the sum of its proper divisors (4808986113876).

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

2111011010220 is a wasteful number, since it uses less digits than its factorization.

2111011010220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122590711 (or 122590709 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 12.

Adding to 2111011010220 its reverse (220101101112), we get a palindrome (2331112111332).

The spelling of 2111011010220 in words is "two trillion, one hundred eleven billion, eleven million, ten thousand, two hundred twenty".