2149040020202 has 4 divisors (see below), whose sum is σ = 3223560030306. Its totient is φ = 1074520010100.

The previous prime is 2149040020147. The next prime is 2149040020243. The reversal of 2149040020202 is 2020200409412.

It is a happy number.

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., 1760899806121 + 388140214081 = 1326989^2 + 623009^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 537260005049 + ... + 537260005052.

Almost surely, 2^{2149040020202} is an apocalyptic number.

2149040020202 is a deficient number, since it is larger than the sum of its proper divisors (1074520010104).

2149040020202 is a wasteful number, since it uses less digits than its factorization.

2149040020202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1074520010103.

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 2149040020202 its reverse (2020200409412), we get a palindrome (4169240429614).

The spelling of 2149040020202 in words is "two trillion, one hundred forty-nine billion, forty million, twenty thousand, two hundred two".