101220100122 has 16 divisors (see below), whose sum is σ = 205213354560. Its totient is φ = 33277840992.

The previous prime is 101220100117. The next prime is 101220100127. The reversal of 101220100122 is 221001022101.

It is an interprime number because it is at equal distance from previous prime (101220100117) and next prime (101220100127).

It is a junction number, because it is equal to n+sod(n) for n = 101220100098 and 101220100107.

It is not an unprimeable number, because it can be changed into a prime (101220100127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115547622 + ... + 115548497.

It is an arithmetic number, because the mean of its divisors is an integer number (12825834660).

Almost surely, 2^101220100122 is an apocalyptic number.

101220100122 is an abundant number, since it is smaller than the sum of its proper divisors (103993254438).

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

101220100122 is a wasteful number, since it uses less digits than its factorization.

101220100122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 231096197.

The product of its (nonzero) digits is 16, while the sum is 12.

Adding to 101220100122 its reverse (221001022101), we get a palindrome (322221122223).

The spelling of 101220100122 in words is "one hundred one billion, two hundred twenty million, one hundred thousand, one hundred twenty-two".