211022013020 has 96 divisors (see below), whose sum is σ = 545541696000. Its totient is φ = 66768954624.

The previous prime is 211022013017. The next prime is 211022013023. The reversal of 211022013020 is 20310220112.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (211022013017) and next prime (211022013023).

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 211022012986 and 211022013004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211022013023) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9268811 + ... + 9291549.

It is an arithmetic number, because the mean of its divisors is an integer number (5682726000).

Almost surely, 2^211022013020 is an apocalyptic number.

211022013020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211022013020 is an abundant number, since it is smaller than the sum of its proper divisors (334519682980).

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

211022013020 is a wasteful number, since it uses less digits than its factorization.

211022013020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27867 (or 27865 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 211022013020 its reverse (20310220112), we get a palindrome (231332233132).

The spelling of 211022013020 in words is "two hundred eleven billion, twenty-two million, thirteen thousand, twenty".