1210202161 has 8 divisors (see below), whose sum is σ = 1430781120. Its totient is φ = 1001546448.

The previous prime is 1210202143. The next prime is 1210202183. The reversal of 1210202161 is 1612020121.

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

It is not a de Polignac number, because 1210202161 - 2⁵ = 1210202129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1210202101) 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, 2980591 + ... + 2980996.

It is an arithmetic number, because the mean of its divisors is an integer number (178847640).

Almost surely, 2^1210202161 is an apocalyptic number.

It is an amenable number.

1210202161 is a deficient number, since it is larger than the sum of its proper divisors (220578959).

1210202161 is an equidigital number, since it uses as much as digits as its factorization.

1210202161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5961623.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 1210202161 is about 34787.9600005519. The cubic root of 1210202161 is about 1065.6615786998.

Adding to 1210202161 its reverse (1612020121), we get a palindrome (2822222282).

The spelling of 1210202161 in words is "one billion, two hundred ten million, two hundred two thousand, one hundred sixty-one".