211222022012010 has 48 divisors (see below), whose sum is σ = 558485346350880. Its totient is φ = 55371196729440.

The previous prime is 211222022012009. The next prime is 211222022012077. The reversal of 211222022012010 is 10210220222112.

It is a happy number.

211222022012010 is a `hidden beast` number, since 21 + 1 + 2 + 220 + 220 + 1 + 201 + 0 = 666.

211222022012010 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×211222022012010² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 19889073976 + ... + 19889084595.

It is an arithmetic number, because the mean of its divisors is an integer number (11635111382310).

Almost surely, 2^{211222022012010} is an apocalyptic number.

211222022012010 is an abundant number, since it is smaller than the sum of its proper divisors (347263324338870).

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

211222022012010 is a wasteful number, since it uses less digits than its factorization.

211222022012010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39778158643 (or 39778158640 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 18.

Adding to 211222022012010 its reverse (10210220222112), we get a palindrome (221432242234122).

The spelling of 211222022012010 in words is "two hundred eleven trillion, two hundred twenty-two billion, twenty-two million, twelve thousand, ten".