210101121222000 has 160 divisors (see below), whose sum is σ = 677447268962880. Its totient is φ = 56020244889600.

The previous prime is 210101121221983. The next prime is 210101121222011. The reversal of 210101121222000 is 222121101012.

It is a super-2 number, since 2×210101121222000² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 48021936 + ... + 52214064.

It is an arithmetic number, because the mean of its divisors is an integer number (4234045431018).

Almost surely, 2^{210101121222000} is an apocalyptic number.

210101121222000 is a gapful number since it is divisible by the number (20) 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 210101121222000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (338723634481440).

210101121222000 is an abundant number, since it is smaller than the sum of its proper divisors (467346147740880).

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

210101121222000 is a wasteful number, since it uses less digits than its factorization.

210101121222000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4200508 (or 4200492 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 15.

Adding to 210101121222000 its reverse (222121101012), we get a palindrome (210323242323012).

The spelling of 210101121222000 in words is "two hundred ten trillion, one hundred one billion, one hundred twenty-one million, two hundred twenty-two thousand".