3971200212202 has 4 divisors (see below), whose sum is σ = 5956800318306. Its totient is φ = 1985600106100.

The previous prime is 3971200212173. The next prime is 3971200212233. The reversal of 3971200212202 is 2022120021793.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 3319578324841 + 651621887361 = 1821971^2 + 807231^2 .

It is a super-2 number, since 2×3971200212202² (a number of 26 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 992800053049 + ... + 992800053052.

Almost surely, 2^{3971200212202} is an apocalyptic number.

3971200212202 is a deficient number, since it is larger than the sum of its proper divisors (1985600106104).

3971200212202 is a wasteful number, since it uses less digits than its factorization.

3971200212202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1985600106103.

The product of its (nonzero) digits is 6048, while the sum is 31.

Adding to 3971200212202 its reverse (2022120021793), we get a palindrome (5993320233995).

The spelling of 3971200212202 in words is "three trillion, nine hundred seventy-one billion, two hundred million, two hundred twelve thousand, two hundred two".