101211002420 has 48 divisors (see below), whose sum is σ = 231915096000. Its totient is φ = 36796081920.

The previous prime is 101211002407. The next prime is 101211002471. The reversal of 101211002420 is 24200112101.

It is a happy number.

It is a super-2 number, since 2×101211002420² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 101211002395 and 101211002404.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1028531 + ... + 1122629.

It is an arithmetic number, because the mean of its divisors is an integer number (4831564500).

Almost surely, 2^101211002420 is an apocalyptic number.

101211002420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

101211002420 is an abundant number, since it is smaller than the sum of its proper divisors (130704093580).

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

101211002420 is a wasteful number, since it uses less digits than its factorization.

101211002420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 99008 (or 99006 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 14.

Adding to 101211002420 its reverse (24200112101), we get a palindrome (125411114521).

The spelling of 101211002420 in words is "one hundred one billion, two hundred eleven million, two thousand, four hundred twenty".