20011212220002 has 64 divisors (see below), whose sum is σ = 41050476048384. Its totient is φ = 6500348599680.

The previous prime is 20011212219967. The next prime is 20011212220019. The reversal of 20011212220002 is 20002221211002.

It is a super-2 number, since 2×20011212220002² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60674502 + ... + 61003422.

It is an arithmetic number, because the mean of its divisors is an integer number (641413688256).

Almost surely, 2^{20011212220002} is an apocalyptic number.

20011212220002 is an abundant number, since it is smaller than the sum of its proper divisors (21039263828382).

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

20011212220002 is a wasteful number, since it uses less digits than its factorization.

20011212220002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329903.

The product of its (nonzero) digits is 64, while the sum is 15.

Adding to 20011212220002 its reverse (20002221211002), we get a palindrome (40013433431004).

The spelling of 20011212220002 in words is "twenty trillion, eleven billion, two hundred twelve million, two hundred twenty thousand, two".