200121012122222 has 16 divisors (see below), whose sum is σ = 316066480010640. Its totient is φ = 94768383270528.

The previous prime is 200121012122189. The next prime is 200121012122281. The reversal of 200121012122222 is 222221210121002.

It is a junction number, because it is equal to n+sod(n) for n = 200121012122194 and 200121012122203.

It is a congruent number.

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, 715979723 + ... + 716259174.

It is an arithmetic number, because the mean of its divisors is an integer number (19754155000665).

Almost surely, 2^{200121012122222} is an apocalyptic number.

200121012122222 is a deficient number, since it is larger than the sum of its proper divisors (115945467888418).

200121012122222 is a wasteful number, since it uses less digits than its factorization.

200121012122222 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1432242595.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 200121012122222 its reverse (222221210121002), we get a palindrome (422342222243224).

The spelling of 200121012122222 in words is "two hundred trillion, one hundred twenty-one billion, twelve million, one hundred twenty-two thousand, two hundred twenty-two".