100020012221122 has 32 divisors (see below), whose sum is σ = 175080383315712. Its totient is φ = 41969915506944.

The previous prime is 100020012221099. The next prime is 100020012221149. The reversal of 100020012221122 is 221122210020001.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 100020012221096 and 100020012221105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 357038598 + ... + 357318625.

It is an arithmetic number, because the mean of its divisors is an integer number (5471261978616).

Almost surely, 2^{100020012221122} is an apocalyptic number.

100020012221122 is a deficient number, since it is larger than the sum of its proper divisors (75060371094590).

100020012221122 is a wasteful number, since it uses less digits than its factorization.

100020012221122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714357442.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 100020012221122 its reverse (221122210020001), we get a palindrome (321142222241123).

The spelling of 100020012221122 in words is "one hundred trillion, twenty billion, twelve million, two hundred twenty-one thousand, one hundred twenty-two".