10121121221222 has 16 divisors (see below), whose sum is σ = 16570880031744. Its totient is φ = 4597997061000.

The previous prime is 10121121221201. The next prime is 10121121221231. The reversal of 10121121221222 is 22212212112101.

It is a junction number, because it is equal to n+sod(n) for n = 10121121221194 and 10121121221203.

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, 125588054 + ... + 125668617.

It is an arithmetic number, because the mean of its divisors is an integer number (1035680001984).

Almost surely, 2^{10121121221222} is an apocalyptic number.

10121121221222 is a deficient number, since it is larger than the sum of its proper divisors (6449758810522).

10121121221222 is a wasteful number, since it uses less digits than its factorization.

10121121221222 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251258515.

The product of its (nonzero) digits is 128, while the sum is 20.

Adding to 10121121221222 its reverse (22212212112101), we get a palindrome (32333333333323).

The spelling of 10121121221222 in words is "ten trillion, one hundred twenty-one billion, one hundred twenty-one million, two hundred twenty-one thousand, two hundred twenty-two".