101220222121102 has 72 divisors (see below), whose sum is σ = 187652760352344. Its totient is φ = 40821075687168.

The previous prime is 101220222121043. The next prime is 101220222121121. The reversal of 101220222121102 is 201121222022101.

It is a self number, because there is not a number n which added to its sum of digits gives 101220222121102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 160639488 + ... + 161268364.

It is an arithmetic number, because the mean of its divisors is an integer number (2606288338227).

Almost surely, 2^{101220222121102} is an apocalyptic number.

101220222121102 is a deficient number, since it is larger than the sum of its proper divisors (86432538231242).

101220222121102 is a wasteful number, since it uses less digits than its factorization.

101220222121102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 634610 (or 634586 counting only the distinct ones).

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 101220222121102 its reverse (201121222022101), we get a palindrome (302341444143203).

Subtracting 101220222121102 from its reverse (201121222022101), we obtain a palindrome (99900999900999).

The spelling of 101220222121102 in words is "one hundred one trillion, two hundred twenty billion, two hundred twenty-two million, one hundred twenty-one thousand, one hundred two".