101012211000 has 256 divisors, whose sum is σ = 353794896000. Its totient is φ = 26658201600.

The previous prime is 101012210951. The next prime is 101012211011. The reversal of 101012211000 is 112210101.

It is a happy number.

It is a super-2 number, since 2×101012211000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2599716 + ... + 2638284.

Almost surely, 2^101012211000 is an apocalyptic number.

101012211000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101012211000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (176897448000).

101012211000 is an abundant number, since it is smaller than the sum of its proper divisors (252782685000).

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

101012211000 is a wasteful number, since it uses less digits than its factorization.

101012211000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38696 (or 38676 counting only the distinct ones).

The product of its (nonzero) digits is 4, while the sum is 9.

Adding to 101012211000 its reverse (112210101), we get a palindrome (101124421101).

The spelling of 101012211000 in words is "one hundred one billion, twelve million, two hundred eleven thousand".