211213302002220 has 384 divisors, whose sum is σ = 693728571949056. Its totient is φ = 47019740903424.

The previous prime is 211213302002207. The next prime is 211213302002321. The reversal of 211213302002220 is 22200203312112.

It is a super-2 number, since 2×211213302002220² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 5616310657 + ... + 5616348263.

It is an arithmetic number, because the mean of its divisors is an integer number (1806584822784).

Almost surely, 2^{211213302002220} is an apocalyptic number.

211213302002220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211213302002220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (346864285974528).

211213302002220 is an abundant number, since it is smaller than the sum of its proper divisors (482515269946836).

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

211213302002220 is a wasteful number, since it uses less digits than its factorization.

211213302002220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39989 (or 39987 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 211213302002220 its reverse (22200203312112), we get a palindrome (233413505314332).

The spelling of 211213302002220 in words is "two hundred eleven trillion, two hundred thirteen billion, three hundred two million, two thousand, two hundred twenty".