22220010211212 has 192 divisors, whose sum is σ = 63139090291200. Its totient is φ = 6701835490560.

The previous prime is 22220010211067. The next prime is 22220010211237. The reversal of 22220010211212 is 21211201002222.

It is a happy number.

22220010211212 is a `hidden beast` number, since 22 + 220 + 0 + 1 + 0 + 211 + 212 = 666.

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

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 248131998 + ... + 248221530.

It is an arithmetic number, because the mean of its divisors is an integer number (328849428600).

Almost surely, 2^{22220010211212} is an apocalyptic number.

22220010211212 is a gapful number since it is divisible by the number (22) 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 22220010211212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31569545145600).

22220010211212 is an abundant number, since it is smaller than the sum of its proper divisors (40919080079988).

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

22220010211212 is a wasteful number, since it uses less digits than its factorization.

22220010211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90533 (or 90525 counting only the distinct ones).

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

Adding to 22220010211212 its reverse (21211201002222), we get a palindrome (43431211213434).

The spelling of 22220010211212 in words is "twenty-two trillion, two hundred twenty billion, ten million, two hundred eleven thousand, two hundred twelve".