222421001402220 has 48 divisors (see below), whose sum is σ = 624258088567008. Its totient is φ = 59171382789120.

The previous prime is 222421001402023. The next prime is 222421001402231. The reversal of 222421001402220 is 22204100124222.

It is a super-2 number, since 2×222421001402220² (a number of 29 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4402607389 + ... + 4402657908.

It is an arithmetic number, because the mean of its divisors is an integer number (13005376845146).

Almost surely, 2^{222421001402220} is an apocalyptic number.

222421001402220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

222421001402220 is an abundant number, since it is smaller than the sum of its proper divisors (401837087164788).

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

222421001402220 is a wasteful number, since it uses less digits than its factorization.

222421001402220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8805265730 (or 8805265728 counting only the distinct ones).

The product of its (nonzero) digits is 2048, while the sum is 24.

Adding to 222421001402220 its reverse (22204100124222), we get a palindrome (244625101526442).

The spelling of 222421001402220 in words is "two hundred twenty-two trillion, four hundred twenty-one billion, one million, four hundred two thousand, two hundred twenty".