121221022123310 has 16 divisors (see below), whose sum is σ = 218243006093952. Its totient is φ = 48478371900000.

The previous prime is 121221022123301. The next prime is 121221022123337. The reversal of 121221022123310 is 13321220122121.

It is a super-2 number, since 2×121221022123310² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1254567941 + ... + 1254664560.

It is an arithmetic number, because the mean of its divisors is an integer number (13640187880872).

Almost surely, 2^{121221022123310} is an apocalyptic number.

121221022123310 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121221022123310 is a deficient number, since it is larger than the sum of its proper divisors (97021983970642).

121221022123310 is a wasteful number, since it uses less digits than its factorization.

121221022123310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2509237339.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 121221022123310 its reverse (13321220122121), we get a palindrome (134542242245431).

The spelling of 121221022123310 in words is "one hundred twenty-one trillion, two hundred twenty-one billion, twenty-two million, one hundred twenty-three thousand, three hundred ten".