211222002020 has 12 divisors (see below), whose sum is σ = 443566204284. Its totient is φ = 84488800800.

The previous prime is 211222002007. The next prime is 211222002113. The reversal of 211222002020 is 20200222112.

211222002020 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 137037674596 + 74184327424 = 370186^2 + 272368^2 .

It is a super-2 number, since 2×211222002020² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211222001986 and 211222002004.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5280550031 + ... + 5280550070.

It is an arithmetic number, because the mean of its divisors is an integer number (36963850357).

Almost surely, 2^211222002020 is an apocalyptic number.

211222002020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

211222002020 is an abundant number, since it is smaller than the sum of its proper divisors (232344202264).

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

211222002020 is a wasteful number, since it uses less digits than its factorization.

211222002020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10561100110 (or 10561100108 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 14.

Adding to 211222002020 its reverse (20200222112), we get a palindrome (231422224132).

The spelling of 211222002020 in words is "two hundred eleven billion, two hundred twenty-two million, two thousand, twenty".