212010011221020 has 24 divisors (see below), whose sum is σ = 593628031419024. Its totient is φ = 56536002992256.

The previous prime is 212010011220983. The next prime is 212010011221079. The reversal of 212010011221020 is 20122110010212.

It is a super-2 number, since 2×212010011221020² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1766750093449 + ... + 1766750093568.

It is an arithmetic number, because the mean of its divisors is an integer number (24734501309126).

Almost surely, 2^{212010011221020} is an apocalyptic number.

212010011221020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212010011221020 is an abundant number, since it is smaller than the sum of its proper divisors (381618020198004).

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

212010011221020 is a wasteful number, since it uses less digits than its factorization.

212010011221020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3533500187029 (or 3533500187027 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 212010011221020 its reverse (20122110010212), we get a palindrome (232132121231232).

The spelling of 212010011221020 in words is "two hundred twelve trillion, ten billion, eleven million, two hundred twenty-one thousand, twenty".