1220101212122 has 16 divisors (see below), whose sum is σ = 1972272648192. Its totient is φ = 562740801840.

The previous prime is 1220101212119. The next prime is 1220101212167. The reversal of 1220101212122 is 2212121010221.

It is a self number, because there is not a number n which added to its sum of digits gives 1220101212122.

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, 15912458 + ... + 15988949.

It is an arithmetic number, because the mean of its divisors is an integer number (123267040512).

Almost surely, 2^{1220101212122} is an apocalyptic number.

1220101212122 is a deficient number, since it is larger than the sum of its proper divisors (752171436070).

1220101212122 is a wasteful number, since it uses less digits than its factorization.

1220101212122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31902893.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 1220101212122 its reverse (2212121010221), we get a palindrome (3432222222343).

The spelling of 1220101212122 in words is "one trillion, two hundred twenty billion, one hundred one million, two hundred twelve thousand, one hundred twenty-two".