101220121020112 has 10 divisors (see below), whose sum is σ = 196113984476498. Its totient is φ = 50610060510048.

The previous prime is 101220121020077. The next prime is 101220121020191. The reversal of 101220121020112 is 211020121022101.

It can be written as a sum of positive squares in only one way, i.e., 100976693248656 + 243427771456 = 10048716^2 + 493384^2 .

It is a super-2 number, since 2×101220121020112² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16), and also a Moran number because the ratio is a prime number: 6326257563757 = 101220121020112 / (1 + 0 + 1 + 2 + 2 + 0 + 1 + 2 + 1 + 0 + 2 + 0 + 1 + 1 + 2).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3163128781863 + ... + 3163128781894.

Almost surely, 2^{101220121020112} is an apocalyptic number.

It is an amenable number.

101220121020112 is a deficient number, since it is larger than the sum of its proper divisors (94893863456386).

101220121020112 is an equidigital number, since it uses as much as digits as its factorization.

101220121020112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6326257563765 (or 6326257563759 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 16.

Adding to 101220121020112 its reverse (211020121022101), we get a palindrome (312240242042213).

The spelling of 101220121020112 in words is "one hundred one trillion, two hundred twenty billion, one hundred twenty-one million, twenty thousand, one hundred twelve".