222212212211220 has 192 divisors, whose sum is σ = 821353375051776. Its totient is φ = 43457850501120.

The previous prime is 222212212211207. The next prime is 222212212211233. The reversal of 222212212211220 is 22112212212222.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (222212212211207) and next prime (222212212211233).

It is a congruent number.

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, 1414565032 + ... + 1414722111.

It is an arithmetic number, because the mean of its divisors is an integer number (4277882161728).

Almost surely, 2^{222212212211220} is an apocalyptic number.

222212212211220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222212212211220 is an abundant number, since it is smaller than the sum of its proper divisors (599141162840556).

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

222212212211220 is a wasteful number, since it uses less digits than its factorization.

222212212211220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2829287190 (or 2829287188 counting only the distinct ones).

The product of its (nonzero) digits is 1024, while the sum is 24.

Adding to 222212212211220 its reverse (22112212212222), we get a palindrome (244324424423442).

The spelling of 222212212211220 in words is "two hundred twenty-two trillion, two hundred twelve billion, two hundred twelve million, two hundred eleven thousand, two hundred twenty".