101211212223030 has 128 divisors (see below), whose sum is σ = 307042413769728. Its totient is φ = 20777306153472.

The previous prime is 101211212222969. The next prime is 101211212223031. The reversal of 101211212223030 is 30322212112101.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 101211212222988 and 101211212223006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101211212223031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 500894992 + ... + 501097011.

It is an arithmetic number, because the mean of its divisors is an integer number (2398768857576).

Almost surely, 2^{101211212223030} is an apocalyptic number.

101211212223030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

101211212223030 is an abundant number, since it is smaller than the sum of its proper divisors (205831201546698).

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

101211212223030 is a wasteful number, since it uses less digits than its factorization.

101211212223030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1001992070.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 101211212223030 its reverse (30322212112101), we get a palindrome (131533424335131).

The spelling of 101211212223030 in words is "one hundred one trillion, two hundred eleven billion, two hundred twelve million, two hundred twenty-three thousand, thirty".