101211122101220 has 48 divisors (see below), whose sum is σ = 213102112156416. Its totient is φ = 40378046400000.

The previous prime is 101211122101183. The next prime is 101211122101259. The reversal of 101211122101220 is 22101221112101.

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, 58910165 + ... + 60603875.

It is an arithmetic number, because the mean of its divisors is an integer number (4439627336592).

Almost surely, 2^{101211122101220} is an apocalyptic number.

101211122101220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101211122101220 is an abundant number, since it is smaller than the sum of its proper divisors (111890990055196).

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

101211122101220 is a wasteful number, since it uses less digits than its factorization.

101211122101220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1701572 (or 1701570 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 17.

Adding to 101211122101220 its reverse (22101221112101), we get a palindrome (123312343213321).

The spelling of 101211122101220 in words is "one hundred one trillion, two hundred eleven billion, one hundred twenty-two million, one hundred one thousand, two hundred twenty".