101221000002122 has 128 divisors (see below), whose sum is σ = 211060685283840. Its totient is φ = 35118970306560.

The previous prime is 101221000002103. The next prime is 101221000002139. The reversal of 101221000002122 is 221200000122101.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 101221000002097 and 101221000002106.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 69940298 + ... + 71372874.

It is an arithmetic number, because the mean of its divisors is an integer number (1648911603780).

Almost surely, 2^{101221000002122} is an apocalyptic number.

101221000002122 is an abundant number, since it is smaller than the sum of its proper divisors (109839685281718).

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

101221000002122 is a wasteful number, since it uses less digits than its factorization.

101221000002122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1433856.

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 101221000002122 its reverse (221200000122101), we get a palindrome (322421000124223).

The spelling of 101221000002122 in words is "one hundred one trillion, two hundred twenty-one billion, two thousand, one hundred twenty-two".