22001212020202 has 16 divisors (see below), whose sum is σ = 33820939268424. Its totient is φ = 10727790976000.

The previous prime is 22001212020197. The next prime is 22001212020241. The reversal of 22001212020202 is 20202021210022.

It can be written as a sum of positive squares in 4 ways, for example, as 1545573590521 + 20455638429681 = 1243211^2 + 4522791^2 .

It is a super-2 number, since 2×22001212020202² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 56148199 + ... + 56538682.

Almost surely, 2^{22001212020202} is an apocalyptic number.

22001212020202 is a deficient number, since it is larger than the sum of its proper divisors (11819727248222).

22001212020202 is a wasteful number, since it uses less digits than its factorization.

22001212020202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112689305.

The product of its (nonzero) digits is 128, while the sum is 16.

Adding to 22001212020202 its reverse (20202021210022), we get a palindrome (42203233230224).

The spelling of 22001212020202 in words is "twenty-two trillion, one billion, two hundred twelve million, twenty thousand, two hundred two".