210121151050 has 72 divisors (see below), whose sum is σ = 412753064256. Its totient is φ = 79571717280.

The previous prime is 210121151017. The next prime is 210121151059. The reversal of 210121151050 is 50151121012.

It is a super-2 number, since 2×210121151050² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is not an unprimeable number, because it can be changed into a prime (210121151059) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 36584479 + ... + 36590221.

It is an arithmetic number, because the mean of its divisors is an integer number (5732681448).

Almost surely, 2^210121151050 is an apocalyptic number.

210121151050 is a deficient number, since it is larger than the sum of its proper divisors (202631913206).

210121151050 is a wasteful number, since it uses less digits than its factorization.

210121151050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7820 (or 7796 counting only the distinct ones).

The product of its (nonzero) digits is 100, while the sum is 19.

Adding to 210121151050 its reverse (50151121012), we get a palindrome (260272272062).

The spelling of 210121151050 in words is "two hundred ten billion, one hundred twenty-one million, one hundred fifty-one thousand, fifty".