2111022101020 has 48 divisors (see below), whose sum is σ = 5066620973568. Its totient is φ = 723755016000.

The previous prime is 2111022100861. The next prime is 2111022101081. The reversal of 2111022101020 is 201012201112.

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, 4281369 + ... + 4748911.

It is an arithmetic number, because the mean of its divisors is an integer number (105554603616).

Almost surely, 2^{2111022101020} is an apocalyptic number.

2111022101020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2111022101020 is an abundant number, since it is smaller than the sum of its proper divisors (2955598872548).

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

2111022101020 is a wasteful number, since it uses less digits than its factorization.

2111022101020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499810 (or 499808 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 2111022101020 its reverse (201012201112), we get a palindrome (2312034302132).

The spelling of 2111022101020 in words is "two trillion, one hundred eleven billion, twenty-two million, one hundred one thousand, twenty".