10202121231000 has 512 divisors, whose sum is σ = 34131756672000. Its totient is φ = 2529386496000.

The previous prime is 10202121230993. The next prime is 10202121231067. The reversal of 10202121231000 is 13212120201.

It is a super-2 number, since 2×10202121231000² (a number of 27 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 127 ways as a sum of consecutive naturals, for example, 2276748760 + ... + 2276753240.

It is an arithmetic number, because the mean of its divisors is an integer number (66663587250).

Almost surely, 2^{10202121231000} is an apocalyptic number.

10202121231000 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 10202121231000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17065878336000).

10202121231000 is an abundant number, since it is smaller than the sum of its proper divisors (23929635441000).

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

10202121231000 is a wasteful number, since it uses less digits than its factorization.

10202121231000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5260 (or 5246 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 10202121231000 its reverse (13212120201), we get a palindrome (10215333351201).

The spelling of 10202121231000 in words is "ten trillion, two hundred two billion, one hundred twenty-one million, two hundred thirty-one thousand".