20202210121 has 8 divisors (see below), whose sum is σ = 20393662464. Its totient is φ = 20011516800.

The previous prime is 20202210101. The next prime is 20202210137. The reversal of 20202210121 is 12101220202.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20202210121 - 2¹¹ = 20202208073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20202210101) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 136201 + ... + 242806.

It is an arithmetic number, because the mean of its divisors is an integer number (2549207808).

Almost surely, 2^20202210121 is an apocalyptic number.

It is an amenable number.

20202210121 is a deficient number, since it is larger than the sum of its proper divisors (191452343).

20202210121 is a wasteful number, since it uses less digits than its factorization.

20202210121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 379511.

The product of its (nonzero) digits is 32, while the sum is 13.

Adding to 20202210121 its reverse (12101220202), we get a palindrome (32303430323).

The spelling of 20202210121 in words is "twenty billion, two hundred two million, two hundred ten thousand, one hundred twenty-one".